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Title: SEPARATION OF RARE EARTHS BY SOLVENT EXTRACTION

Abstract

A process is given for separating lanthanide rare earths from each other from an aqueous mineral acid solution, e.g., hydrochloric or nitric acid of a concentration of above 3 M, preferably 12 to 16 M, by extraction with a water- immiscible alkyl phosphate, such as tributyl phosphate or a mixture of mono-, di- and tributyl phosphate, and fractional back-extraction with mineral acid whereby the lanthanides are taken up by the acid in the order of increasing atomic number.

Inventors:
;
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4117078
Patent Number(s):
2955913
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-15-007437
NSA Number:
NSA-15-007437
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-61
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; ACIDS; ALKYL RADICALS; BUTYL PHOSPHATES; HYDROCHLORIC ACID; NITRIC ACID; PHOSPHATES; RARE EARTHS; SEPARATION PROCESSES; SOLUTIONS; SOLVENT EXTRACTION; TBP; WATER

Citation Formats

Peppard, D.F., and Mason, G.W. SEPARATION OF RARE EARTHS BY SOLVENT EXTRACTION. United States: N. p., 1960. Web.
Peppard, D.F., & Mason, G.W. SEPARATION OF RARE EARTHS BY SOLVENT EXTRACTION. United States.
Peppard, D.F., and Mason, G.W. Tue . "SEPARATION OF RARE EARTHS BY SOLVENT EXTRACTION". United States.
@article{osti_4117078,
title = {SEPARATION OF RARE EARTHS BY SOLVENT EXTRACTION},
author = {Peppard, D.F. and Mason, G.W.},
abstractNote = {A process is given for separating lanthanide rare earths from each other from an aqueous mineral acid solution, e.g., hydrochloric or nitric acid of a concentration of above 3 M, preferably 12 to 16 M, by extraction with a water- immiscible alkyl phosphate, such as tributyl phosphate or a mixture of mono-, di- and tributyl phosphate, and fractional back-extraction with mineral acid whereby the lanthanides are taken up by the acid in the order of increasing atomic number.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1960},
month = {10}
}